CVE-2025-55132
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2026-01-20

Last updated on: 2026-02-03

Assigner: HackerOne

Description
A flaw in Node.js's permission model allows a file's access and modification timestamps to be changed via `futimes()` even when the process has only read permissions. Unlike `utimes()`, `futimes()` does not apply the expected write-permission checks, which means file metadata can be modified in read-only directories. This behavior could be used to alter timestamps in ways that obscure activity, reducing the reliability of logs. This vulnerability affects users of the permission model on Node.js v20, v22, v24, and v25.
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Meta Information
Published
2026-01-20
Last Modified
2026-02-03
Generated
2026-06-16
AI Q&A
2026-01-20
EPSS Evaluated
2026-06-15
NVD
CVE-2025-55132
EUVD
EUVD-2026-3325
Affected Vendors & Products
Showing 4 associated CPEs
Vendor Product Version / Range
nodejs node.js From 20.0.0 (inc) to 20.20.0 (exc)
nodejs node.js From 22.0.0 (inc) to 22.22.0 (exc)
nodejs node.js From 24.0.0 (inc) to 24.13.0 (exc)
nodejs node.js From 25.0.0 (inc) to 25.3.0 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-276 During installation, installed file permissions are set to allow anyone to modify those files.
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Executive Summary

This vulnerability is a flaw in Node.js's permission model where the function futimes() allows changing a file's access and modification timestamps even if the process only has read permissions. Unlike utimes(), futimes() does not enforce write-permission checks, enabling modification of file metadata in read-only directories. This can be exploited to alter timestamps and obscure activity.

Impact Analysis

The vulnerability can impact you by allowing unauthorized modification of file timestamps, which can be used to obscure or falsify activity logs. This reduces the reliability of logs and can hinder forensic analysis or auditing.

Compliance Impact

This vulnerability allows modification of file access and modification timestamps without proper write permissions, which can obscure activity and reduce the reliability of logs. Since accurate logging is critical for compliance with standards like GDPR and HIPAA, which require reliable audit trails and activity records, this flaw could negatively impact compliance by undermining the integrity of log data.

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